Door frame



FIG. 1 is a perspective view of the door frame;

FIG. 2 is an end view of the door frame;

FIG. 3 is a right side view of the door frame;

FIG. 4 is a top view of the door frame;

FIG. 5 is a left side view of the door frame; and,

FIG. 6 is a bottom view of the door frame. 

An ornamental design for a door frame, as shown. 